1 files changed, 0 insertions, 95 deletions
diff --git a/src/math/s_atanf.c b/src/math/s_atanf.c
deleted file mode 100644
index 03067e18..00000000
--- a/src/math/s_atanf.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/* s_atanf.c -- float version of s_atan.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <math.h>
-#include "math_private.h"
-
-static const float atanhi[] = {
-  4.6364760399e-01, /* atan(0.5)hi 0x3eed6338 */
-  7.8539812565e-01, /* atan(1.0)hi 0x3f490fda */
-  9.8279368877e-01, /* atan(1.5)hi 0x3f7b985e */
-  1.5707962513e+00, /* atan(inf)hi 0x3fc90fda */
-};
-
-static const float atanlo[] = {
-  5.0121582440e-09, /* atan(0.5)lo 0x31ac3769 */
-  3.7748947079e-08, /* atan(1.0)lo 0x33222168 */
-  3.4473217170e-08, /* atan(1.5)lo 0x33140fb4 */
-  7.5497894159e-08, /* atan(inf)lo 0x33a22168 */
-};
-
-static const float aT[] = {
-  3.3333334327e-01, /* 0x3eaaaaaa */
- -2.0000000298e-01, /* 0xbe4ccccd */
-  1.4285714924e-01, /* 0x3e124925 */
- -1.1111110449e-01, /* 0xbde38e38 */
-  9.0908870101e-02, /* 0x3dba2e6e */
- -7.6918758452e-02, /* 0xbd9d8795 */
-  6.6610731184e-02, /* 0x3d886b35 */
- -5.8335702866e-02, /* 0xbd6ef16b */
-  4.9768779427e-02, /* 0x3d4bda59 */
- -3.6531571299e-02, /* 0xbd15a221 */
-  1.6285819933e-02, /* 0x3c8569d7 */
-};
-
-        static const float
-one   = 1.0,
-huge   = 1.0e30;
-
-float
-atanf(float x)
-{
-        float w,s1,s2,z;
-        int32_t ix,hx,id;
-
-        GET_FLOAT_WORD(hx,x);
-        ix = hx&0x7fffffff;
-        if(ix>=0x50800000) {    /* if |x| >= 2^34 */
-            if(ix>0x7f800000)
-                return x+x;             /* NaN */
-            if(hx>0) return  atanhi[3]+atanlo[3];
-            else     return -atanhi[3]-atanlo[3];
-        } if (ix < 0x3ee00000) {        /* |x| < 0.4375 */
-            if (ix < 0x31000000) {      /* |x| < 2^-29 */
-                if(huge+x>one) return x;        /* raise inexact */
-            }
-            id = -1;
-        } else {
-        x = fabsf(x);
-        if (ix < 0x3f980000) {          /* |x| < 1.1875 */
-            if (ix < 0x3f300000) {      /* 7/16 <=|x|<11/16 */
-                id = 0; x = ((float)2.0*x-one)/((float)2.0+x);
-            } else {                    /* 11/16<=|x|< 19/16 */
-                id = 1; x  = (x-one)/(x+one);
-            }
-        } else {
-            if (ix < 0x401c0000) {      /* |x| < 2.4375 */
-                id = 2; x  = (x-(float)1.5)/(one+(float)1.5*x);
-            } else {                    /* 2.4375 <= |x| < 2^66 */
-                id = 3; x  = -(float)1.0/x;
-            }
-        }}
-    /* end of argument reduction */
-        z = x*x;
-        w = z*z;
-    /* break sum from i=0 to 10 aT[i]z**(i+1) into odd and even poly */
-        s1 = z*(aT[0]+w*(aT[2]+w*(aT[4]+w*(aT[6]+w*(aT[8]+w*aT[10])))));
-        s2 = w*(aT[1]+w*(aT[3]+w*(aT[5]+w*(aT[7]+w*aT[9]))));
-        if (id<0) return x - x*(s1+s2);
-        else {
-            z = atanhi[id] - ((x*(s1+s2) - atanlo[id]) - x);
-            return (hx<0)? -z:z;
-        }
-}